scratchfoundation/paper.js
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Add support for bevel joins to Path#getStrokeBounds, miter still pending.

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This commit is contained in:
Jürg Lehni 2011-03-06 13:26:36 +00:00
parent 407b6d8d33
commit 5507482d8f
1 changed files with 13 additions and 7 deletions
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20
src/path/Path.js
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@ -549,23 +549,29 @@ var Path = this.Path = PathItem.extend({
closed= this.closed,
bounds = calculateBounds(this, radius);
function addBevelJoin(curve, t) {
var point = curve.getPoint(t),
normal = curve.getNormal(t).normalize(radius);
bounds = bounds.include(point.add(normal));
bounds = bounds.include(point.subtract(normal));
}
function addJoin(segment, join) {
var joinBounds,
handleIn = segment.getHandleInIfSet(),
var handleIn = segment.getHandleInIfSet(),
handleOut = segment.getHandleOutIfSet();
if (join == 'round' || handleIn && handleOut) {
joinBounds = new Rectangle(new Size(width, width))
.setCenter(segment._point)
bounds = bounds.unite(new Rectangle(new Size(width, width))
.setCenter(segment._point));
} else {
switch (join) {
case 'bevel':
break;
case 'miter':
var curve = segment.getCurve();
addBevelJoin(curve, 0);
addBevelJoin(curve.getPrevious(), 1);
break;
}
}
if (joinBounds)
bounds = bounds.unite(joinBounds);
}
function addCap(segment, cap, t) {